/Engine/Source/Runtime/RenderCore/Public/ShaderCompilerJobTypes.h
FShaderPipelineCompileJobKey ( const [FShaderPipelineType](API\Runtime\RenderCore\FShaderPipelineType) * InType, const [FVertexFactoryType](API\Runtime\RenderCore\FVertexFactoryType) * InVFType, int32 InPermutationId )